New posts in geometric-topology

To what extent are homeomorphisms just deformations?

general-topology geometry algebraic-topology geometric-topology low-dimensional-topology

Space of homeomorphisms Homeo$(S^1)$ of $S^1$ deformation retracts onto $O(2)$

general-topology geometric-topology

Amalgamated product $\mathbb{Z}*_{\mathbb{Z}} 0$

algebraic-topology geometric-topology

Russian Texts on Geometry

differential-geometry reference-request soft-question geometric-topology mathematical-russian

Subgroup of free group on two elements free of rank $6$.

abstract-algebra group-theory algebraic-topology geometric-topology free-groups

Is the Alexander polynomial of the 2-cable of a knot zero?

geometric-topology knot-theory low-dimensional-topology

Is the E8 manifold homeomorphic to a CW complex?

manifolds geometric-topology

General relationship between braid groups and mapping class groups

algebraic-topology homotopy-theory geometric-topology braid-groups mapping-class-group

Spin structures on $S^1$ and Spin cobordism

algebraic-topology geometric-topology

Easier proof about suspension of a manifold

algebraic-topology manifolds homotopy-theory geometric-topology

Embedding compact (boundaryless?) $n$-manifolds in $n$-dimensional real space

differential-geometry manifolds geometric-topology low-dimensional-topology

Does $\mathbb{R}^2$ Contain Uncountably Many Disjoint Copies of the Warsaw Circle?

general-topology geometric-topology plane-geometry plane-curves continuum-theory

A simply-connected closed surface is a sphere

algebraic-topology surfaces geometric-topology alternative-proof low-dimensional-topology

Intuition for Exotic $\mathbb R^4$'s

manifolds geometric-topology smooth-manifolds gauge-theory surgery-theory

Can every curve be subdivided equichordally?

general-topology geometry curves geometric-topology

Spine of a noncompact surface with proper retraction

algebraic-topology differential-topology surfaces geometric-topology

A differentiable manifold of class $\mathcal{C}^{r}$ tangent to $E^{\pm}$ and representable as graph

differential-topology dynamical-systems geometric-topology

Is the torus the union of two connected, simply-connected open sets?

algebraic-topology geometric-topology low-dimensional-topology

cup product in cohomology ring of a suspension

algebraic-topology homology-cohomology homotopy-theory geometric-topology cw-complexes

The kernel of free group map to surface group

group-theory geometric-topology geometric-group-theory group-presentation